https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101058
--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Uros Bizjak <u...@gcc.gnu.org>: https://gcc.gnu.org/g:4986946f3b761dd4c3e0d79ca735c90e33f4bb83 commit r12-1436-g4986946f3b761dd4c3e0d79ca735c90e33f4bb83 Author: Uros Bizjak <ubiz...@gmail.com> Date: Mon Jun 14 20:56:18 2021 +0200 i386: Split V2HImode *punpckwd to SSE instruction [PR101058] V2HImode *punpckwd should not be split to the insn that depends on TARGET_MMX_WITH_SSE, since the later is disabled on 32bit targets. Also return true early from ix86_vectorize_vec_perm_const when testing with V2HI mode. *punpckwd can be used to implement all permutations. 2021-06-14 Uroš Bizjak <ubiz...@gmail.com> gcc/ PR target/101058 * config/i386/i386-expand.c (ix86_vectorize_vec_perm_const): Return true early when testing with V2HImode. * config/i386/mmx.md (*punpckwd): Split to sse2_pshuflw_1. gcc/testsuite/ PR target/101058 * gcc.target/i386/pr101058.c: New test.